| Abbreviation | Definition |
|---|---|
| RMNA | Rumor Mill News Agency |
| RMO | Rattlesnake Mountain Observer |
| RMP | Replexs Media Player |
| RMP | Rhozet Media Pipeline |
| RMQ | Railway Museum Quarterly |
| RMR | Research Management Review |
| RMRT | Rapid Media Reaction Team |
| RMT | CBS Radio Mystery Theater |
| RMTA | Rocky Mountain Telecommunications Association |
| RMW | Reading Moving Water |
| RMX | Right Media Exchange |
| RN | Read News |
| RNE | Radio Nacional de España (Spanish National Radio) |
| RNE | Review of Network Economics |
| RNL | Rendering with Natural Light |
| RNN | Regional News Network |
| RNN | Renaissance News & Notes |
| RNN | Renaissance News Network |
| RNN | Renewable News Network |
| RNN | Roadkills News Network |